At the risk of drifting slightly off topic, the book "Sex, Time and Power:Quote:
Originally Posted by jstrack
How Women's Sexuality Shaped Human Evolution" by Leonard Shlain is interesting.
He suggests that "monthly
menses was an evolutionary trait that gave humans a powerful survival tool, the ability to anticipate the future,
but at a cost to women, severe blood iron loss... [T]he risks associated with childbirth led to women's veto power
on sex, which compelled men to become hunter-gatherers to scare up iron-rich meat to bargain for sexual
favors".
Also, eating meat provides more cholesterol, which is a precursor to pregnenolone, DHEA and the
androgens that are converted on your skin to pheromones.